- #1

darkvalentine

- 12

- 0

## Homework Statement

Evaluate: 1/4+2/16+3/64+4/256+5/1024+...

## Homework Equations

## The Attempt at a Solution

The summation can be written as: Sum(k=1 to infinity, k/(4^k))

Then I do not know how to calculate the sum. Please help!